J Lucas,
I agree that the rocking should allow it to come out of reverse. Again, this might not be pertinent, but I think you can push the clutch pedal in and have the pressure plate release its tension, BUT the clutch disc can still be stuck to the flywheel, and not allow the drivetrain to disconnect so to speak!
If you pushed the clutch in and were still not able to push the rig, I would say the clutch might be glued to the flywheel.
But I agree with you, rocking should have allowed you to get the transmission out of reverse. If you get the engine operating, and can run the truck, even without the driveshaft, I'll bet the splashing lube in the transmission might get everything oiled up and moving fine again.
Stuart
